"Dirrty" is a song by American singer Christina Aguilera featuring American rapper Redman, released as the lead single from her fourth studio album Stripped. Despite Aguilera's first three years of commercial success, she was displeased with the lack of control over her image. In response, she desired to create a song that would represent her authentic persona. She approached hip hop producer Rockwilder and suggested using Redman's 2001 song "Let's Get Dirty " as a guide. The final result, "Dirrty", is an R&B and hip hop song that also features rapping verses from Redman and describes sexual activities.

Christina María Aguilera is an American singer, songwriter, actress, and television personality. Referred to as the "Voice of a Generation", she is noted for her four-octave vocal range, musical reinventions, sustaining high notes including use of the whistle register, and a signature use of melisma throughout her music. Recognized as an influential figure in popular music, she also became known for incorporating controversial themes such as feminism, sexuality, LGBT culture and the sex-positive movement into her work. Aguilera was also honoured as a Disney Legend, for her contributions to The Walt Disney Company.